〜じゃないか (~ja nai ka) — It is fine, isn't it!
Pushing the other person to agree — "but it is like this, come on".
Formula (सूत्र ढाँचा)
Grammar rule (व्याकरण नियम र परिभाषा)
「じゃないか」is not really a question — it pushes the other person to agree: "come on, it is obvious". How to attach: straight onto the plain form of a verb or an い-adjective (いい → いいじゃないか, ある → あるじゃないか). With a noun or a な-adjective, drop だ (大丈夫だ → 大丈夫じゃないか). It sounds strong and a bit rough, and is mostly used by men. The softer version both men and women use is 「〜じゃない？」with the voice rising: 「これ、安いじゃない？」. **⚠️ The danger:** じゃないか is only for friends and same-age 同僚. Saying 「いいじゃないか」to a 店長, a 課長 or a 先輩 cuts across what they said and declares you right — it sounds very rude. When you want agreement from someone above you, say 「いいと 思います」or 「〜ですね」.
Examples (उदाहरणहरू)
いいじゃないか。
ii ja nai ka.
That is fine, isn't it. — to a friend
まだ 時間が あるじゃないか。
mada jikan ga aru ja nai ka.
There is still time, isn't there.
先輩には「いいと 思います」と 言います。
senpai ni wa "ii to omoimasu" to iimasu.
To your 先輩 you say 「いいと 思います」.
Knowledge check (मिनी ज्ञान जाँच)
Question: 1/3Your friend is hesitating. Which line pushes them to agree — "Come on, it is fine"?
💡 Hint: It is not a real question — it is fishing for agreement.
じゃないか wants agreement, not an answer. いいですか asks permission, いいかな is muttering to yourself, いいかい asks a junior a yes/no question. じゃないか is for friends and same-age 同僚 only.
Your 課長 says something and you agree. Which is right?
💡 Hint: With someone above you, です／ます.
じゃないか to a 課長 is rude. 「そうですね、いいと 思います」is the safe line.
Which is the softer version both men and women use?
💡 Hint: The one with か taken off.
The rising 「安いじゃない？」is the softer one. じゃないか is stronger and mostly male speech.
Your score: /3